Read e-book online Applied Cryptography and Network Security: 8th International PDF

By Aurélie Bauer, Jean-Sébastien Coron, David Naccache, Mehdi Tibouchi, Damien Vergnaud (auth.), Jianying Zhou, Moti Yung (eds.)

ISBN-10: 3642137075

ISBN-13: 9783642137075

ACNS 2010, the eighth foreign convention on utilized Cryptography and community safeguard, was once held in Beijing, China, in the course of June 22-25, 2010. ACNS 2010 introduced jointly participants from academia and taken with m- tiple learn disciplines of cryptography and safety to foster the alternate of rules. ACNS was once initiated in 2003, and there was a gradual development within the caliber of its application during the last eight years: ACNS 2003 (Kunming, China), ACNS 2004 (Yellow Mountain, China), ACNS 2005 (New York, USA), ACNS 2006 (Singapore), ACNS 2007 (Zhuhai, China), ACNS 2008 (New York, USA), ACNS2009(Paris,France). Theaverageacceptanceratehasbeenkeptataround 17%, and the common variety of members has been stored at round a hundred. The convention bought a complete of 178 submissions from worldwide. every one submission was once assigned to at the very least 3 committee participants. Subm- sions co-authored by means of contributors of this system Committee have been assigned to at the very least 4 committee participants. end result of the huge variety of top quality s- missions, the evaluation method used to be tough and we're deeply thankful to the committee participants and the exterior reviewers for his or her extraordinary paintings. - ter vast discussions, this system Committee chosen 32 submissions for presentation within the educational tune, and those are the articles which are incorporated during this quantity (LNCS 6123). also, a couple of different submissionswereselected for presentation within the non-archival business track.

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By Aurélie Bauer, Jean-Sébastien Coron, David Naccache, Mehdi Tibouchi, Damien Vergnaud (auth.), Jianying Zhou, Moti Yung (eds.)

ISBN-10: 3642137075

ISBN-13: 9783642137075

ACNS 2010, the eighth foreign convention on utilized Cryptography and community safeguard, was once held in Beijing, China, in the course of June 22-25, 2010. ACNS 2010 introduced jointly participants from academia and taken with m- tiple learn disciplines of cryptography and safety to foster the alternate of rules. ACNS was once initiated in 2003, and there was a gradual development within the caliber of its application during the last eight years: ACNS 2003 (Kunming, China), ACNS 2004 (Yellow Mountain, China), ACNS 2005 (New York, USA), ACNS 2006 (Singapore), ACNS 2007 (Zhuhai, China), ACNS 2008 (New York, USA), ACNS2009(Paris,France). Theaverageacceptanceratehasbeenkeptataround 17%, and the common variety of members has been stored at round a hundred. The convention bought a complete of 178 submissions from worldwide. every one submission was once assigned to at the very least 3 committee participants. Subm- sions co-authored by means of contributors of this system Committee have been assigned to at the very least 4 committee participants. end result of the huge variety of top quality s- missions, the evaluation method used to be tough and we're deeply thankful to the committee participants and the exterior reviewers for his or her extraordinary paintings. - ter vast discussions, this system Committee chosen 32 submissions for presentation within the educational tune, and those are the articles which are incorporated during this quantity (LNCS 6123). also, a couple of different submissionswereselected for presentation within the non-archival business track.

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Read or Download Applied Cryptography and Network Security: 8th International Conference, ACNS 2010, Beijing, China, June 22-25, 2010. Proceedings PDF

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Additional info for Applied Cryptography and Network Security: 8th International Conference, ACNS 2010, Beijing, China, June 22-25, 2010. Proceedings

Sample text

2 How to Construct Interval Encryption from Binary Tree Encryption 29 For all the nodes ω| j , j = 1, · · · , d on the path from the root to the leaf node ω, if it has a right sibling ω| j,(RS) =[ω1 ω2 · · · ω j−1 1], the algorithm uses the right master key to rj generate the respective node secret key as S Kω| j,(RS) ,(R) =[gα2 ω (F(R) (ω| j,(RS)))r j , gr j , h j+1, , (R) r · · · , hd,j (R)] where r j is also a random number; Otherwise the algorithm uses the left master key to generate node secret key for its left sibling ω| j,(LS) =[ω1 ω2 · · · ω j−1 0] as rj r ω S Kω| j,(LS) ,(L) =[gα−α (F(L) (ω| j,(LS) ))r j , gr j , h j+1, , · · · , hd,j (L) ].

This aims to prevent another attack called a single-user 28 H. Lin et al. collusion. This attack only occurs in the scenario with multiple intervals (where k ≥ 1). For instance (shown in Fig. 2. b), in an interval encryption system with two intervals [3, 4] [6, 8], the partial decryption on C3 from the left private key D5,(L) contains α−α5 and the partial decryption on C8 from the right private key D5,(R) contains the other half randomness α5 , the message encryption key corresponding to α·γ might be recovered if these two intervals use the same randomness.

3. The key observation to our transformation is that: the two opposite direction arrows starting f rom index 5 can cross both bounds 3 and 6 respectively and there f ore decrypt the corresponding partial ciphertext in two di f f erent manners (We will show how How to Construct Interval Encryption from Binary Tree Encryption 27 to differentiate the partial decryption from two different directions, and how this will eventually lead to successful generation of the corresponding message encryption key in the sequel).

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Applied Cryptography and Network Security: 8th International Conference, ACNS 2010, Beijing, China, June 22-25, 2010. Proceedings by Aurélie Bauer, Jean-Sébastien Coron, David Naccache, Mehdi Tibouchi, Damien Vergnaud (auth.), Jianying Zhou, Moti Yung (eds.)


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